JAVA print a line

Write a JAVA program to print a line of *. The length of line will be given as user input.

import java.io.*;
public class MyMain {
public static void main(String[] args) {
// TODO Auto-generated method stub
InputStreamReader istream = new InputStreamReader(System.in) ;
        BufferedReader read = new BufferedReader(istream) ;
        System.out.print("Enter Line Size : ");
        int num=0;
        try{
            num=Integer.parseInt(read.readLine() );
        } catch(Exception Number){
            System.out.println("Invalid Number!");
        }
            for(int i=1;i<=num;i++){
                    System.out.print("*");
                }
}
}